MOSIEWICKI mirna Alejandra
congresos y reuniones científicas
Research on bio-derived polymers, composites and nanocomposites in INTEMA (ARGENTINA).
J. M. BUFFA; M.A. MOSIEWICKI; N. E. MARCOVICH; M. PEREDA; C. MEIORIN; V. MUCCI; M. I. ARANGUEN
Simposio; BALTIC POLYMER SYMPOSIUM; 2015
There is a growing interest in academic and industrial sectors in using materials and reactants based on the biomass. This trend is a response to the need of replace petroleum based materials and chemicals, but also to the novel properties that are arising from their development . Natural renewable resources are available worldwide; products, by-products and wastes form agricultural and forest activities, as well as fisheries and food industries can be a source for these new materials, which in many cases are also biodegradable. Argentina is an high volume producer of these goods, which makes it particularly important to study this type of materials. Biomass is a source of polymers, chemicals and precursors, and also for fillers and reinforcements that can be used in the production of composites and more recently of nanocomposites. Researchers at the Ecomaterials group at INTEMA have been working for more than twenty years on wood plastic and natural fiber composites, carbohydrate-based films and hybrid carbohydrate-protein films for food packaging, structural and functional composites based on vegetable oils, nanocellulose composite films, "smart" bio-based materials. Other areas (which will not be discussed in this presentation) are protein and multilayered films, coatings and adhesives and bacterial polyesters.In the field of carbohydrates, chitosan has been considered in the preparation of strong films (by complexation with a protein derivative, such as caseinate) or in the electrospinning of nanostructured non-woven mats [2,3].Vegetable oil-based materials have been extensily studied to prepare different type of materials such as alkydic type resins (from linseed oil), or polyurethanes (from castor oil and tung oil) and derived wood plastic composites with excellent compatibility and much improved properties. Cationically polymerized tung oil allowed the preparation of crosslinked networks with wide range of mechanical properties, with some of them displaying shape memory behavior .Finally, nanocomposites prepared from functional nanoparticles (such as nanomagnetite) dispersed in a bio-based polymeric matrix or bio-nanoparticles (such as cellulose nanocrystals) dispersed in synthetic or bio-based polymeric matrices were studied, and the relation processing-structure-properties investigated .References1.Gandini, A., "Polymers from Renewable Resources: A Challenge for the Future of Macromolecular Materials", Macromolecules, 41(24), 9491-9504 (2008)2.Pereda, M., Aranguren, M., Marcovich, N.,?Water vapor absorption and permeability of films based on chitosan and sodium caseinate?. J. Applied Polymer Science, 111(6), 2777-2784 (2009). 3.Casado, U., Marcovich, N., Caracciolo, P., Abraham, G., Aranguren, M., "Electrospun mats of high chitosan content", BIPOCO 2014, 24-28 August 2014, Visegrad, Hungary.4.Meiorin, C., Aranguren, M., Mosiewicki, M., "Smart and structural thermosets from cationic copolymerization of a vegetable oil". J Appl.Polym.Sci. 124 (6), 5071-5078 (2012).5.Pereda, M, Dufresne A., Aranguren, M.I., Marcovich, N., "Polyelectrolyte Films Based on Chitosan/Olive Oil and Reinforced with Cellulose Nanocrystals", Carbohydrate Polymers, 101 (1), 1018-1026, (2014).